OFDM Relay Cognitive Radio Multiple Antennas Synchronization Resource Allocation Channel Estimation Full duplex CDMA Spectrum Sharing Spectrum Sensing Interference Cancellation Stochastic Geometry Bi-Directional Neural Networks Feedback Energy Harvesting Heterogeneous Networks Equalizer Femtocell FBMC HetNet Dynamic TDD in-band full-duplex system Equalization 5G relay networks Device-to-Device (D2D) C-V2V Reliability Cross-link interference Duplex TVWS Ultra Low Power non-orthogonal multiple access SC-FDMA channel capacity mode selection Cell Search interference suppression SINR mismatch problem Handoff Channel estimation error Spectral efficiency Vehicle-to-vehicle communication LTE-TDD Ultra-dense small cell Ultra-dense small cell networks Idle cells LTE-based V2V GFDM interference MIMO maximum likelihood method resource selection Multi-user Receiver Mode 3 user fairness partial overlap Metaheuristics Empty cell V2X P-NOMA distributed mode Location-based Number of training blocks Uplink SCMA system Communication range System level simulation SCMA control overhead On/off algorithm QR Factorization —Device-to-device (D2D) Resource sharing Power allocation FS-NOMA frame structure self interference cancellation Outdated channel estimation inter user interference quality of service Full-duplex amplify and forward communication User association ultra-dense small cell network Timing and frequency offset timing misalignment cellular radio WVAN intercarrier interference telecommunication traffic UFMC resource block management antenna arrays 5G mobile communication Zigbee QAM health care intersymbol interference body area networks